Calvin Russell is the name of: Calvin Russell (American football) (born 1983), American football player Calvin Russell (musician) (1948–2011), American singer-songwriter and guitarist
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfc5ec80b93d0a6701c0d79aa75547867c2502e1959a69002783ee06c22b173. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80df4c64-ddf2-4b36-b94d-2fc82497ebd2.json and https://artists.proofprofile.net/proofs/artist/80df4c64-ddf2-4b36-b94d-2fc82497ebd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc08227b848aa520f41e00eed38056162b7a61b03ab6733bafe2448893397e6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V89302395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979029925d3dce8f82df9c8dc799d621773c9ba20fad9789938b264f0ed6c706. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V89302396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751227ebbce035bc66f5af3c5e1a8cccbeb4926284cc001ee317bb91115ca0be. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567d775811934eaefefd22264004e52e26ba46ce57caf3a29fdfbdacd46f8410. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8643ecad88a55e3fd6c3b0dac5ebcfd2a5beb697c014ad0cd723918be17f70. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0265555c6b9eddf76f24f5735167512abb3703897ed9d853a2f8144649c607ea. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:50:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8d321b9c9b4eaf807546c11c765315b7cffc5e5ee293b0b2e12bc0c5e850e7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6ee2f9c640bf9a8d009c349904a83803c5184dc801f8e8a3834b5cb00b3a87. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec15d933e10fa8e1937397d76400ec6de404c9b8172c39f176b67618b35cc6d7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa434294b0d01d906a0c8e1583b39fd2356904031b4fbd54f58a35c656d23e937. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b98a8c722e20b922ef44cbc675cac9dabebcdb918cdbaacce8bede88a999c16. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4af36024b98a293c588e5c30f10d5018f3ca79d122f0e07a3204fdd3ed3d42. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80007313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a7f7d0577fa4c1005ef2b26aa8a3de111ef308a94f00e02f87c06f68096d1b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37927934cb9f29d4c967e43c7fa4f6f8afa802fcf822609e7ac7d565fcd0274. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6c4619c3fa0ae0b2e2c9a3e3557a3bce43c13be341dab04b3f31579962617f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b198dd8391f3d1ba8cfa84b7af8fa5b13c732762f094b8574311b3cf5e0015. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16a06312e1112f666a26ab8899ba90d8e1fd0c741449be57f1cab9edb3c848a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3601879fd22925f8bbee92bfb8b2ef7a61c2318d641368cb76156d9efe67ff69. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522cd7fece8d10479c4c994138a0074d11b8b5910b3425afa7fbd2593f69c41f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2d38b9c8393bb47d7425dde24ac5d8e025c77675983026087e601abf0f15de. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98e74288d2f547188154218a3c6ce62b56353984b1c8a6c111cde69748fd21b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a93e38ffab211bb31251331eec685f3f483cde1748620489636226f36fd8914. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a41a8c35a861b10d9b719aa8b459676a5e334c8be45a109ff98faef4fca84f0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6ad541a37c3f11f6389b36616e23c5e8632ec5b6abaedce69ecc2a8dc0964. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f46942da144c34aea3749f7ef7b70159c11b840599b1d30c599e343f2537a99. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e6e045bc7f614bc7e0c6c78aa4ad1db85ff81d1c40ff15420ca1772e46d066. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557f8796451aa7d5d1e9a24259a148e1240666d7aec02e928b2a47f2c8dca802. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc064a6db9686852eccc769eb1fb19f25d9e735a7061f54421102fc8867e4da96. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b88eedb164b6394ded05bd2fba0ea0146239d08c7b5674f202e72c86112df0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19c4627d94227c11e9630def33bf9f65c6ad2156c75eb7e5057b6ffca6695cb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a59c26d7b3008c283b5ba75737e445a51c1dbeebd125f460213efbc99a9b58f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce830fccc31e1ddcc5378893d21c12abdf2eb85b76cad04f39a46d3aef824395. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a142f59e14bb3504442543552f7695df5fdc4678e7fbfb38f341956207f2dfd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80400583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735bc08ca8f59796b7f50f0326af573e33dbcc583958d6302855621254de6a9c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA450535020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f164ca78410373ca381f325ffab06c628dfb8bf3a37229734ef1f09b894a2fc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:37:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA450535060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b1cc6255e831244d3f79b409da85f3903d8ea3b8674e3f73f8aa01d707b5c9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA450535080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876dd7bbb57ca7e3d5d4c025b1a8e18d4c276e9051a0b757603411f84ee00d91. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA450535100.
A Man In Full (The Best of Calvin Russell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a68e5b76e2d05d6f0455aa15c8b4562632e53a8e4c5b41189c32955dccf493. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81139402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee105592efe0f86017142c33a544ed40930d53d582c0c1503ce68b4e4924826f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81139403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90788b89eaa21cbe25f1b7e8c9c784ad1ad92939c86f8da78f29480b83c76033. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81139404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7cc36cb8da816a60d21480b4c1c53de1c9bd21b066e71face60252cae3b917. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81139406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773285e593026f81e8a93da6746e68896ab20ccd2c9943c3d111970c47d744df. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81139407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71249c7842c74fd481ee279420f3e463937c80a7533e9ce0c2cc67381946921. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e95128fab13afb7c0aec1cfd3ff4490e9715e9545e78d4280e9ac1bdb0d334. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440104.
Jan Douwe Kroeske presents: 2 Meter Sessions, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9cd31faf40c427e937a53254889f0fd59e74e43306de1b17af6610eee883d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL07C1700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a36b305a26debb00c820093d1daf6949da1293b83b8e22fb48be7dc0673adb4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68dc69f8e9b310dca01ef1ff9a9c5fc8fe3804a141e27acb72539efa481f135. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5361c06c3e84c53926010c0d56a89d0370b75099b94022029b16036a0e13986. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440001.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7128ae70db2a0f8660aa0140bf489a5edfedd2f1f8e8dcb73fad04e48b00091e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597f08bb5694847130df037ca7526dbe385185ae19510af2a40ca176c678d9d0. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad7c6ebf594c6a0a8ed5ef59cd7bf47f58f687536fde4006dabea52b29fdcd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42517b875993efedeb41c976ec2375ba8a71e92f9a83ceb88cb73634ef87c726. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203535801119468c54c22255fed327aee419ce0ec1d1c9cdb90a958f5a154910. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7456e629fd2e6f1dcd0080b0553d05535f561eef7501b363a505eedea69702a4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV112440013.